Laser ammo hint - Laser Ammo SureStrike 9mm Cartridge Laser Trainer

I use both laser ammo cartridges.Laserlyte & Surestrik removing from the barrel I use a new pencil, Just put it in the the barrel & gently tap/push the laser out. The O rings on the laser hold it firmly in place! Laserlyte cartridge shipped with a small tube of lubricant.